Patents by Inventor John Van Belzen

John Van Belzen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of improving the crushing strength, impact resistance and compressibility of urea, and urea composition
    Publication number: 20070131011
    Abstract: A method of improving the crushing strength, impact resistance and the compressibility of urea granules by the addition of a compound to the molten urea, wherein the compound comprises both a polyvinyl compound and an organic molecule consisting of 1-10 carbon atoms and 1-10 polar organic groups.
    Type: Application
    Filed: October 6, 2003
    Publication date: June 14, 2007
    Applicant: YARA INTERNATIONAL ASA
    Inventors: Erik Bijpost, Luc Vanmarcke, John Van Belzen, John Van Der Hoeven